We are heading into the summer months, and that means rising temperatures, which can be a concern for many motorists for a variety of reasons. When it comes to rising fuel temperatures, there are extra costs involved related to the expansion rate of fuel. As fuel gets hotter, it expands (at a rate per degree of increase) above the optimal fuel temperature of 60F. For Diesel, the rate expansion per degree is .0005.

The temperature of the fuel drivers pump into their tank affects how much money they spend, and the volume of fuel consumed. The point is, you may not be getting what you pay for at the pump. There are many States where this is of concern. For this post, we are focusing on California, Arizona, and Texas, which are some key loading states for our drivers in the summer months. The average fuel temperature in California is 75F, for Arizona it is 82F, and for Texas, 78F. These significantly higher than the optimal fuel temperature of 60F. The OOIDA has created a spreadsheet to allow carriers to calculate the extra hot fuel cost for motorists (considering either Gas expansion or Diesel expansion). You can check it out here: http://www.ooida.com/EducationTools/Tools/hotfuelcal.asp.

We have calculated the Hot Diesel Fuel Cost based on current average fuel prices for the three states (sourced from www.truckmiles.com/Fuelprices.asp). This is based on 110,000 average annual miles, with a truck getting 6 miles per gallon. Here are the results:

California Hot Fuel Calc Arizona Hot Fuel Calc Texas Hot Fuel Calc

As demonstrated, hot fuel can cost you hundreds of dollars a year. So, what can be done to reduce this cost? Whenever possible, try to fuel up in “cooler” states, where the average fuel temperature will be closer to 60F. Washington and Oregon are always a good option. However, sometimes this is not an option, and you have to get fuel when and where you need it. So, in these cases, try fueling earlier in the morning or later at night, when the temperature outside is cooler and enough time has passed to allow the fuel to at truckstops to cool. Even 1 degree can make a difference! For more great tips on how to save money on fuel, check out our blog post, Fuel Saving Tips for Drivers.

Hot Fuel – What it is & How to Calculate it for 3 of Our Most Traveled States was last modified: by